Quick answers
- Is CVE-2026-102337 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-102337 being exploited in the wild.
- How severe is CVE-2026-102337?
- Informational severity, published 4 November 2026.
- Which products and versions are affected?
- Webmin before 2.652.
- Is there a fix for CVE-2026-102337?
- Yes: fixed in 2.652. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-102337 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-102337?
- Check whether you run Webmin at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 2.652
Technical details
The File Manager and Upload/Download modules in Webmin do not restrict server-side URL downloads to public IP addresses, allowing untrusted users with module access to direct the server to fetch from non-public network ranges (RFC 1918, link-local, loopback) and cloud-provider metadata endpoints. This is a server-side request forgery (SSRF) vulnerability requiring module-level access to exploit. The fix restricts download destinations by resolved IP address, allowing root to maintain unrestricted access while enforcing public-address-only downloads for unprivileged users.
Affected products
- Webmin Webmin before 2.652
Timeline
- 2026-11-04: disclosed